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php shopping cart code_PHP tutorial

Jul 20, 2016 am 11:07 AM
phpandindivualproductcodeoccurIncreaseussupplyofSimpleShoppingshopping cart

Here we provide you with a simple php shopping cart code. From adding shopping products to making purchases, this function is indispensable in mall development. We do not need a database and use txt text files to operate user shopping content. .

Here we provide you with a simple php tutorial shopping cart code. From adding shopping products to making purchases, this function is indispensable in mall development. We don’t need a database tutorial and use a txt text file. Manipulate user shopping content.

Add items to the shopping cart

//
// add_item.php:
// Add an item to the shopping cart .
//
session_start();
if (session_is_registered('cart')) {
session_register('cart');
}

require 'lib. inc.php'; // LoadProducts()

LoadProducts(); // Load products in $master_products_list

// Make $curr_product global
$curr_product = array();

// Loop through all the products and pull up the product
// that we are interested in

foreach ($master_products_list as $prod_id => $ product) {
if (trim($prod_id) == trim($_GET[id])) {
$curr_product = $product;
}
}


// Register our session
//session_register('cart');
//if(session_is_registered('cart')) echo "already registered";

if ($_POST[ordered]) { // If they have chosen the product

array_push($_SESSION[cart][products], array(trim($_POST[id]), $_POST[quantity] ));
$_SESSION[cart][num_items] += $_POST[quantity];

}
?>



                                                                                                                                                                                                                                           ?php }                                                                                                                                                                            🎜>




Added to shopping basket successfully



Return Product List page.

Add to your shopping basket


Product name:


Product description:


Product unit price: RMB


  Product quantity:






< ;/html>



View items in shopping cart

//

// cart.php: www.bkjia.com

//
session_start();


require 'lib.inc.php';
//Determine whether the shopping basket session variable cart is registered, if not, register the cart variable
if (session_is_registered('cart')) {
session_register('cart');

}



// If the shopping basket is not initialized, initialize the shopping basket
if ( !isset($_SESSION[cart][num_items])) {
$_SESSION[cart] = array("num_items" => 0,

"products" => array());

}


// From site_lib.inc, Loads the $master_products_list array
LoadProducts(); //Load the item list
?>



Demo session tracking shopping basket program

Welcome to the online store

if ($_SESSION[cart][num_items]) { // If there is something to show
?>

Items currently in the shopping basket






                                                                                                        
                                                                                    Unit price >  
                                                                                                                                         [products] as $i => $product) {
$product_id = $product[0];
$quantity = $product[1];

$total += $quantity *
(double)$master_products_list[$product_id][price];
?>




[name]; ?>
                                                                         ;
                                                                                                                                     action="change_quant.php" method="post">
              
                                                                                                                                                                                     ;td> ;?php
}
?>

b>                                                                           
 





}
?>

Items for sale in the store





We offer the following items for sale:








Product name
                                                                                                             => $item) {
?>

   
  td>
                                                                               $item[price]; ?>


                                                                                                                                   >?>



Modify the quantity in the shopping cart


//
// change_quant .php:
// Change the quantity of an item in the shopping cart.
//
session_start();
if (session_is_registered('cart')) {
session_register(' cart');
}

// Typecast to int, making sure we access the
// right element below
$i = (int)$_POST[id];

// Save the old number of products for display
// and arithmetic$old_num = $_SESSION[cart][products][$i][1];


if ($_POST[quantity]) {

$_SESSION[cart][products][$i][1] = $_POST[quantity]; //change the quantity
} else {

unset($ _SESSION[cart][products][$i]); // Send the product into oblivion

}

// Update the number of items
$_SESSION[cart][num_items] = ( $old_num >$_POST[quantity]) ?
                                                                                                                                                                                                                      through quantity]-$old_num);
?>



<br> Quantity modification

Return product list page.

> ;


Function page, the user saves the contents of the shopping cart to the txt database

//Item array
$master_products_list = array();

//Load item data function

function LoadProducts() {
global $master_products_list;
$filename = 'products.txt';

$fp = @fopen($filename, "r")

or die("Failed to open $filename file");

@flock($fp, 1)
or die("Lock $filename file failed");

//Read file content
while ($line = fgets($fp, 1024)) {
list($id, $name, $desc, $price) = explode('|', $line); //Read each line of data, the data is formatted with | => $name, //Name
                                                  "price" => $price); //Unit price
}

@fclose($fp) //Close file
or die("Failed to close $filename file");

}

?>


It’s very simple, we just use With just 4 files, you can implement the shopping cart function using php. Well, this is just a simple

php shopping cart code
More complex ones need to be considered more and better.


http://www.bkjia.com/PHPjc/444925.html

www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/444925.htmlTechArticleHere we provide you with a simple php shopping cart code, from adding shopping products to making purchases, in In mall development, this function is indispensable. We don’t need a database, use...
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